Permutation-lock.



M. SPINELLO.

PERMUTATION LOCK.

APPLICATION FILED IANZZ. 191a.

1,Q99,5 l7. Patnted Apr. 8, 1919.

[NV/5N TOR.

A TTORNE Y STAES MATHEW SPINELLO, OF KANSAS CITY, MISSOURI, ASSIGNOR TO HARRY (ELEMENTS, OF

' KANSAS CITY, MISSOURI.

' PERMUTATION-LOCK.

To alt-whom it may concern:

q Be it known that I, MATHEW DPINELLO,

'citizen of the United States, residing at Kansas City, in the county of Jackson and State of'Missouri, have mvented certain new and useful Improvements in. Permutation- I Locks; and I do declare the followin to be a .vide alock of this character of simple and full, clear, and exact description oi the invention, such as will enable others skilled in the artto which it appert'ains to make and use thesame, reference being had to the acconlpanying drawings, and to the letters durable construction and comprising in its istructuresuch an arrangementof parts that picking or otherwise tampering wlth the combination is impossible.

It is a further object of the invention to provide a lock wherein, by different arrangements of the parts controlling the locking member, an indefinite numberof difi'erent combinations may be effected; the parts being readily taken apart when the lock is open to permit-such'a change if it is desired.

In accomplishing this object I have pro- "ided improved details of-structure, the preferred formsof which are illustrated in the accompanying drawings, wherein IIIIII, Fig. II, showing a tumbler in Figure I is a. side view of a lock con structed according to the present invention.

Fig. II is a central, longitudinal section of the same, showing the parts in locked relation.

Fig. III is a' transverse section on the line locked position.

' Fig. IV is an enlarged horizontal section i on the line IVIV, Fig. II.

comprising in its preferred form, a tumbler Specification of Letters Patent.

Patented Apr.'8, 1919.

Application filed January 22, 1918. Serial No. 213,123.

barrel 2' whereon a plurality of ring like tumblers 3 are revolubly mounted, and provided at its opposite ends with externally threaded portions 4-4 whereonto keeper members 5-6 are respectively mounted to retain the said tumblers in close and proper relation relative to other locking parts of the device presently described. I

The barrel 2 is provided with a central longitudinally extending channel 7 wherein a locking bolt 8 is slidably contained; the latter being provided at one end witha tapered shank 9 adapted for movement into and from a notch 10 in the mounting end portion 11 of a lock shackle 12 forming a part of the lock, to eifect the looking or unlocking of the parts.

The shackle 12 is of semi-circular form and comprises at one end the notched mounting portion 11 and at its opposite end has I a short shank 14 adapted for pJrOjectiOn into a socket 15 in the keeper mem er 6 whereby, when the shackle is moved to closed position and the pin end 9 seated in the shank notch 10, turning of the shackle .in' the keeper 5 or its removal-from parts'locked thereby is positively prevented. JIhe end portion 11 is slidably and also revolubly mounted in a channel 16 in the keeper 5 so that, when the parts are unlocked, the shackle may be moved outwardly to free the shank 1a from the keeper 6 and may thenbe partially revolved to give'ample clearance for placing or removing the shackle from parts locked thereby.

Outward movement of the shackle from the keeper member 5 is limited to prevent displacement of the same from the other parts when not in locked position by means of a set screw 18 that is threaded through the inner face of the keeper 5 and has an end portion projecting into the channel 16 and operable Within a slot 19 extending longitudinally in the shackle end 11; the. end of the screw being adapted to engage the lower end of the slot 19 to limit the outward movement of the shackle after it has moved sutlioiently that the end shank 14 will clear the keeper member 6.

When the tumblers are so arranged, as is presently described, that the parts are in unlocked relation, the bolt 8 is urged from locking relation with the shackle member by means of a coil spring 20.that incloses the end or" the pin opposite the locking end and bears at its opposite ends against a head 21 on the bolt and against the end of the barrel 2 the keeper member 6 being provided with a deepened socket 23 whereinto the end of the barrel 2 is threaded and which. is of sufficient depth to permit such movement of the locking pin therein.

' The barrel 2 is provided along its upper side with a longitudinally extending slot 25 and mounted in the bolt and extending outwardly through said slot cooperatively with each of the tumblers 3, are pins 26 each of which has a locking contact with its respective tumbler and is only released therefrom when the tumbler is properly located. It is necessary also that all of such pins be 2 simultaneously released in order that the bolt may move to release the shackle.

' The tumblers 3 comprise ring like bodies and are provided on corresponding sldes with peripheral grooves 27 and each has a slot 28 cut through that portion of the ring between'the base of the groove and the op posite face of the ring of sufficient width and depth toreceive the ends of the pins, 26, and when the bolt 8 is in unlocked relation to the shackle it is so held by pressure of the spring 20 that the ends of said pins are located in the said slots 28 and the tumblers, except one presently described, are thereby retained against revoluble movement on the barrel.

Movement of the locking bolt 8 against pressure of the spring 20 into the shackle notch 10 is accomplished by movement of a certain designated tumbler, here shown to be the tumbler 3, which difi'ers in one re spect, slightly from the others, this difference being in the notch 28 which instead of being out directly through the ring as shown in Fig. V, has one face cut diagonally as indicated at 30 (Fig. VI) so that with the pin-26 seated in this particular notch, turning o'f'the tumbler on the barrel in the direction indicated by the arrow Fig. VI, the diagonal wall will engage the pin 26' and the bolt will be moved to locking position. Movement of the bolt also moves the remaining pins 26 from. the tumbler slots 28 and into the grooves 27 and the tumblers may then be turned about the barrel to hold the bolt in locking relation with the shackle.

It is apparent that with this arrangement before the locking pin can be released from the shackle, all of the tumblers must be sir'nultaneousl located with the slots 28 in registration with the slot 25. In order that this may be done I provide the exterior face of each tumbler with a plurality of numerals which, when arranged in a certain order and located properly with respect to a mark or marks on a stationary part of the look here shown as the marks 35 on the keeper 5, will bring the slots in this desired position,

1 the pins. 26 will be released and under the pressure of the spring the pin 10 will be moved outwardly from the shackle notch and the latter is then free to move out- Wardly to release the shank 1i from the keeper 6.

It is apparent that with the parts so constructed and assembled a substantial and effective lock is provided which may be used only by one knowing the combination of numbers necessary to permit setting or releasing of the locking pin. It is also apparent that if it is desired by first removing the'keeper member 6 from thebarrel end 4, the tumblers may be arranged in an indefinite number of orders and an indefinite number of combinationsthereby formed so that members threaded on the-ends of the barrel,

a shackle-slidable in one ofthe keeper members and having a bolt receiving recess, one end of the shackle engaging a recess in the other keeper member, a longitudinally movable bolt in the barrel having outstanding pins, one end of the bolt adapted to engage the recess in the shackle, the other end of the bolt being provided with a head, a coil spring wound on the bolt, one end of which bears against the end of the barrel and the other against the head on the bolt, ring tumblers sleeved on the barrel and having notches adapted to aline with the pins on the bolt, one of said tumblers havinga cam face to engage a pin to shift the bolt against the action of the spring to move the bolt into engagement with the recesses in the shackle, the spring being effective when all of the notches in the tumblers are in alinement to retract the bolt from the recess in the shackle. I

2. A permutationlock comprising a lock barrel having a longitudinally extending slot therein, keeper members fixed on the ends of said barrel, a shackle having a recessed shank at one end slidably mounted in one of said keepers and a shank at its opposite end movable into the opposite keeper. a headed lock bolt mounted on said barrel having an end movable into and from said recessed shank, a spring wound on said bolt one end bearing against the barrel and the other against the head on the bolt to yieldbarrel in close relation between the keeper rel slot to release the pins and permit outmembers and pins extending from the bolt ward movement of said bolt to release the through said barrel slot and engageable by shackle from locked relation therewith for 10 the said tumblers to retain the bolt in looked the purpose set forth.

relation with the shackle; said tumblers be- In testimony whereof I afiix my signature. ing provided with transverse slots adapted Y to be moved into registration with said bar- MATHEW SPINELLQ.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. 0. 

